Patent Assignment Details
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| Reel/Frame: | 005325/0697 | |
| Pages: | 4 |
| | Recorded: | 05/25/1990 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
1
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Patent #:
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Issue Dt:
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11/03/1992
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Application #:
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07529026
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Filing Dt:
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05/25/1990
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Title:
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POLYIMIDE QUATERNARY SALTS AS CLAY STABILIZATION AGENTS
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Assignee
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| 100 NORTH BROADWAY |
| ST. LOUIS, MISSOURI 63102 |
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Correspondence name and address
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PETROLITE CORP.,
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369 MARSHALL AVE.,
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ST. LOUIS, MO 63119
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